CN212229387U - Mini-LED backlight module and display device - Google Patents
Mini-LED backlight module and display device Download PDFInfo
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- CN212229387U CN212229387U CN202021108308.5U CN202021108308U CN212229387U CN 212229387 U CN212229387 U CN 212229387U CN 202021108308 U CN202021108308 U CN 202021108308U CN 212229387 U CN212229387 U CN 212229387U
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- 239000005341 toughened glass Substances 0.000 claims description 3
- 239000011049 pearl Substances 0.000 abstract description 16
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Abstract
The utility model discloses a Mini-LED backlight module, which comprises a PCB substrate and LED lamp beads; the LED lamp beads are side light emitting type LEDs and are rectangular LED lamp beads; the LED lamp beads are arranged on the PCB substrate and are electrically connected with an external circuit through the PCB substrate; and the LED lamp beads are arranged on the PCB substrate in a diamond shape. It should be explained in advance that adjacent two in the X direction among the prior art the clearance between the LED lamp pearl is lighted by above-mentioned two adjacent LED lamp pearls completely, and the utility model discloses in, through with LED lamp pearl changes the rhombus and arranges and makes the clearance between two adjacent LED lamp pearls in the X direction can also receive the light that comes from upper and lower two sides and supply, makes Mini-LED backlight unit's whole light-emitting is more even. The utility model also provides a display device of having above-mentioned beneficial effect.
Description
Technical Field
The utility model relates to a LED shows the field, especially relates to a Mini-LED backlight unit and display device.
Background
The Mini-LED backlight module development is the focus of all recent television manufacturers for showing new technology and being the market in product iteration, the innovation point of the technology is mainly that regional dimming can be realized, million-level contrast is realized, 1000nit of brightness of the module can be realized, after the quantum dot technology is added, high color gamut can be realized, and ultra-thinness in appearance can be realized, but under the condition that the current optical development parameters and design have no industrial standards, how to design a backlight module optical system with more cost performance is the direction of key research of an optical design developer.
At present reduce cost's means, mainly rely on the side light-emitting type LED lamp pearl that adopts big light-emitting angle, thereby the interval of drawing away LED lamp pearl reduces required LED lamp pearl quantity in the equal light-emitting area as far as possible, and then presses down backlight unit's material cost, nevertheless can still exist luminance weak between the adjacent LED lamp pearl among the prior art, leads to the uneven condition of backlight unit whole luminance to appear.
Therefore, the problem to be solved by those skilled in the art is how to improve the uniformity of the Mini-LED backlight module.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a Mini-LED backlight unit and display device to solve the uneven problem of Mini-LED backlight unit luminance among the prior art.
In order to solve the technical problem, the utility model provides a Mini-LED backlight module, which comprises a PCB substrate and LED lamp beads;
the LED lamp beads are side light emitting type LEDs and are rectangular LED lamp beads;
the LED lamp beads are arranged on the PCB substrate and are electrically connected with an external circuit through the PCB substrate;
and the LED lamp beads are arranged on the PCB substrate in a diamond shape.
Optionally, in the Mini-LED backlight module, the thickness of the LED beads ranges from 0.8 mm to 1.3 mm, inclusive.
Optionally, in the Mini-LED backlight module, the LED lamp beads are square LED lamp beads.
Optionally, in the Mini-LED backlight module, an X distance between adjacent LED beads ranges from 4 mm to 13 mm, inclusive.
Optionally, in the Mini-LED backlight module, a Y-pitch range of the adjacent LED beads is 4 mm to 13 mm, inclusive.
A display device comprising a Mini-LED backlight module as described in any one of the above.
Optionally, in the display device, the light mixing distance corresponding to the display device ranges from 1 mm to 5 mm, inclusive.
Optionally, in the display device, a light emitting surface of the display device includes a transparent protective film.
Optionally, in the display device, the transparent protective film is a tempered glass layer.
The Mini-LED backlight module provided by the utility model comprises a PCB substrate and LED lamp beads; the LED lamp beads are side light emitting type LEDs and are rectangular LED lamp beads; the LED lamp beads are arranged on the PCB substrate and are electrically connected with an external circuit through the PCB substrate; and the LED lamp beads are arranged on the PCB substrate in a diamond shape. It should explain in advance that side light-emitting type LED generally is rectangle LED, and the light-emitting direction is mutually perpendicular's X direction and Y direction promptly, and LED lamp pearl among the prior art arranges for the rectangle for adjacent two on the X direction clearance between the LED lamp pearl is lighted by above-mentioned two adjacent LED lamp pearls completely, does not have the illumination in other directions to supply, appears the relative dark space easily, causes the light-emitting inhomogeneous, and the utility model discloses in, arrange through will LED lamp pearl changes the rhombus into and makes the clearance between two adjacent LED lamp pearls on the X direction can also receive the light supply that comes from two directions from top and bottom (being on the Y direction), makes Mini-LED backlight unit's whole light-emitting is more even. The utility model also provides a display device of having above-mentioned beneficial effect.
Drawings
In order to clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a Mini-LED backlight module provided in the present invention;
FIG. 2 is a schematic diagram of formation of dark regions between LED lamp beads arranged in a rectangular shape in the prior art;
fig. 3 is a schematic structural diagram of another specific embodiment of a Mini-LED backlight module according to the present invention.
Detailed Description
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a Mini-LED backlight module, the structural schematic diagram of one specific embodiment of which is shown in figure 1, which is called as the first specific embodiment, and comprises a PCB substrate 100 and LED lamp beads 200;
the LED lamp beads 200 are side light emitting type LEDs and are rectangular LED lamp beads 200;
the LED lamp bead 200 is arranged on the PCB substrate 100 and is electrically connected with an external circuit through the PCB substrate 100;
the LED lamp beads 200 are arranged on the PCB substrate 100 in a diamond shape.
The thickness of the LED lamp bead 200 ranges from 0.8 mm to 1.3 mm, inclusive, such as any one of 0.80 mm, 1.00 mm, or 1.30 mm.
The Mini-LED backlight module provided by the utility model comprises a PCB substrate 100 and LED lamp beads 200; the LED lamp beads 200 are side light emitting type LEDs and are rectangular LED lamp beads 200; the LED lamp bead 200 is arranged on the PCB substrate 100 and is electrically connected with an external circuit through the PCB substrate 100; the LED lamp beads 200 are arranged on the PCB substrate 100 in a diamond shape. It should be explained in advance that the side light-emitting LED is generally a rectangular LED, that is, the light-emitting direction is the mutually perpendicular X direction and Y direction, and LED lamp beads 200 in the prior art are arranged for the rectangle, so that two adjacent in the X direction the gap between LED lamp beads 200 is completely illuminated by the above two adjacent LED lamp beads 200, and there is no illumination supplement in other directions, so that a relative dark space is easily appeared, and the light-emitting is not uniform, and the utility model discloses in, through changing LED lamp beads 200 to the rhombus arrangement, the gap between two adjacent LED lamp beads 200 in the X direction can also receive the light supplement from the upper and lower two directions (i.e. in the Y direction), so that the whole light-emitting of the Mini-LED backlight module is more uniform.
Fig. 2 is a schematic diagram of a dark space between adjacent LED lamp beads 200 caused by rectangular arrangement of the LED lamp beads 200 in the prior art, as shown in fig. 2, the maximum illumination angle of the LED lamp beads 200 still may cause a dark space between adjacent LED lamp beads 200, which is partially not illuminated, resulting in uneven light emission.
On the basis of the first specific embodiment, the LED lamp bead 200 is further limited to obtain a second specific embodiment, a schematic structural diagram of which is shown in fig. 3 and includes a PCB substrate 100 and the LED lamp bead 200;
the LED lamp beads 200 are side light emitting type LEDs and are rectangular LED lamp beads 200;
the LED lamp bead 200 is arranged on the PCB substrate 100 and is electrically connected with an external circuit through the PCB substrate 100;
the LED lamp beads 200 are arranged on the PCB substrate 100 in a diamond shape;
the LED lamp beads 200 are square LED lamp beads 200.
The difference between this embodiment and the above embodiment is that the LED lamp bead 200 is defined as a square lamp bead in this embodiment, and the rest of the structures are the same as those in the above embodiment, and are not described herein again.
In this embodiment, the square LED lamp beads 200 are adopted, and the light-emitting intensity of the square LED lamp beads 200 in four directions tends to be uniform, so that the same interval value is taken in the X direction and the Y direction when the square LED lamp beads 200 are arranged on the PCB substrate 100, so that the arrangement of the square LED lamp beads 200 is simpler, and the effect of reducing the design difficulty of the Mini-LED backlight module is achieved.
On the basis of the second specific embodiment, the distance between the LED lamp beads 200 is further limited to obtain a third specific embodiment, which has the same structural schematic diagram as the above specific embodiment and includes a PCB substrate 100 and LED lamp beads 200;
the LED lamp beads 200 are side light emitting type LEDs and are rectangular LED lamp beads 200;
the LED lamp bead 200 is arranged on the PCB substrate 100 and is electrically connected with an external circuit through the PCB substrate 100;
the LED lamp beads 200 are arranged on the PCB substrate 100 in a diamond shape;
the LED lamp beads 200 are square LED lamp beads 200;
the X distance range of the adjacent LED lamp beads 200 is 4-13 mm, including the end point value;
the Y-space range of the adjacent LED lamp beads 200 is 4 mm to 13 mm, including the end point value.
The difference between this embodiment and the above embodiment is that, in this embodiment, the distance between adjacent LED beads 200 is defined, and the rest of the structures are the same as those in the above embodiment, and are not described herein again.
The utility model provides a LED lamp pearl 200, if on the PCB board, the interval sets up too far, then has the risk that further increases adjacent LED lamp pearl 200's interval department dark space, makes the luminous uneven condition aggravation of Mini-LED backlight unit, nevertheless if the interval sets up too closely, though guaranteed the luminous homogeneity of Mini-LED backlight unit, but can use more because of equal area LED lamp pearl 200 leads to rising by a wide margin of cost, and this embodiment will be adjacent the interval scope of LED lamps and lanterns has been injectd, is the best scope that reachs after actual inspection and theoretical calculation, of course, also can do corresponding adjustment according to actual conditions.
It should be noted that "X interval" in the present invention means adjacent the interval of LED lamp bead 200 in the X direction, and similarly "Y interval" means adjacent the interval of LED lamp bead 200 in the Y direction, the X direction with the Y direction is rectangular LED two light-emitting directions of LED lamp bead 200, please see X interval and Y interval shown in fig. 1 and fig. 3.
The utility model also provides a display device, display device includes as above-mentioned any one kind Mini-LED backlight unit.
As a preferred embodiment, the light mixing distance corresponding to the display device is in a range of 1 mm to 5 mm, inclusive, such as any one of 1.0 mm, 2.6 mm, or 5.0 mm.
As a preferred embodiment, the light exit surface of the display device comprises a transparent protective film.
As a preferred embodiment, the transparent protective film is a tempered glass layer.
The Mini-LED backlight module provided by the utility model comprises a PCB substrate 100 and LED lamp beads 200; the LED lamp beads 200 are side light emitting type LEDs and are rectangular LED lamp beads 200; the LED lamp bead 200 is arranged on the PCB substrate 100 and is electrically connected with an external circuit through the PCB substrate 100; the LED lamp beads are arranged on the PCB substrate 100 in a diamond shape. It should be explained in advance that the side light-emitting LED is generally a rectangular LED, that is, the light-emitting direction is the mutually perpendicular X direction and Y direction, and LED lamp beads 200 in the prior art are arranged for the rectangle, so that two adjacent in the X direction the gap between LED lamp beads 200 is completely illuminated by the above two adjacent LED lamp beads 200, and there is no illumination supplement in other directions, so that a relative dark space is easily appeared, and the light-emitting is not uniform, and the utility model discloses in, through changing LED lamp beads 200 to the rhombus arrangement, the gap between two adjacent LED lamp beads 200 in the X direction can also receive the light supplement from the upper and lower two directions (i.e. in the Y direction), so that the whole light-emitting of the Mini-LED backlight module is more uniform.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is right above that the utility model provides a Mini-LED backlight unit and display device have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (9)
1. A Mini-LED backlight module is characterized by comprising a PCB substrate and LED lamp beads;
the LED lamp beads are side light emitting type LEDs and are rectangular LED lamp beads;
the LED lamp beads are arranged on the PCB substrate and are electrically connected with an external circuit through the PCB substrate;
and the LED lamp beads are arranged on the PCB substrate in a diamond shape.
2. The Mini-LED backlight module of claim 1, wherein the LED beads have a thickness ranging from 0.8 mm to 1.3 mm, inclusive.
3. The Mini-LED backlight module of claim 1, wherein the LED beads are square LED beads.
4. The Mini-LED backlight module of claim 1, wherein the X pitch of adjacent LED beads ranges from 4 mm to 13 mm, inclusive.
5. The Mini-LED backlight module of claim 1, wherein the Y-pitch of adjacent LED beads ranges from 4 mm to 13 mm, inclusive.
6. A display device, characterized in that the display device comprises a Mini-LED backlight module according to any one of claims 1 to 5.
7. The display device of claim 6, wherein the display device corresponds to a light mixing distance in a range from 1 millimeter to 5 millimeters, inclusive.
8. The display device of claim 6, wherein the light exit surface of the display device comprises a transparent protective film.
9. The display device according to claim 8, wherein the transparent protective film is a tempered glass layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108308.5U CN212229387U (en) | 2020-06-15 | 2020-06-15 | Mini-LED backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108308.5U CN212229387U (en) | 2020-06-15 | 2020-06-15 | Mini-LED backlight module and display device |
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| CN212229387U true CN212229387U (en) | 2020-12-25 |
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| CN202021108308.5U Active CN212229387U (en) | 2020-06-15 | 2020-06-15 | Mini-LED backlight module and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115857227A (en) * | 2022-12-29 | 2023-03-28 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN115995221A (en) * | 2023-03-23 | 2023-04-21 | 惠科股份有限公司 | Display device and electronic equipment |
| CN116053367A (en) * | 2023-03-06 | 2023-05-02 | 苏州晶台光电有限公司 | Preparation method of Mini LED backlight bead and backlight module, backlight bead and backlight module |
-
2020
- 2020-06-15 CN CN202021108308.5U patent/CN212229387U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115857227A (en) * | 2022-12-29 | 2023-03-28 | Tcl华星光电技术有限公司 | Backlight module and display device |
| US12001102B1 (en) | 2022-12-29 | 2024-06-04 | Tcl China Star Optoelectronic Technology Co., Ltd. | Backlight modules and display devices |
| US12210245B2 (en) | 2022-12-29 | 2025-01-28 | Tcl China Star Optoelectronics Technology Co., Ltd. | Backlight modules and display devices |
| CN116053367A (en) * | 2023-03-06 | 2023-05-02 | 苏州晶台光电有限公司 | Preparation method of Mini LED backlight bead and backlight module, backlight bead and backlight module |
| CN115995221A (en) * | 2023-03-23 | 2023-04-21 | 惠科股份有限公司 | Display device and electronic equipment |
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